Pile-fabric loom



March 11 1924. 1,486,220

J. F. BENOIT FILE FABRIC LOOM Filed June 4. 1923 2 Sheets-Sheet 1 Fig.1.

lnvenTor. Joseph F Benofl WJIM Aflys.

March 11 1924. 1,486,220

J. F. BENQIT PILB FABRIC LOOK Filed June 4. L923 2 Shuts-Shut 2 \nv-eqTor.

Joseph F Benoir M Maw Afiys.

Patented Mar. 11, 1924.

73D 51? OFFIEE;

JOSEFIIT. BENOIT, 0F SANFORD; ASSIGNOR TOSANFORD MILLS, OF SANFORD, MAINE; A GOBPORATEON' 0F MAINE.-

Ammonium filed 1 June" 4; 1923; same no; eisgzsv.

To all whom it may concew'n:

Be it known that I; Jose h Bmei'r, .a citizen of the United States; and -1'es ident 0f2 Sanfbrd; countyof York; State of Maine, ha-veinvented an Imijmvemem i11= Pile- Fabric- Lodms (if whieh the following de= scription, in eenixeetiemwith" the-accompany ing: drawing, is mspeeificeticm; like-shame ters ow the-di 'awing' representing like perts;

This invention relates to a pile 'fabrie 100m in which pile wires are employed fer foi'ming the pilelln this o'ia'ss ofi learnsit is cdstom'imry 'to -so support the shr ttle bo'x oir the side'of the- 100111 011 which the Wire: m'otiofl is located bhat said: shuttle bm may: have a; movement reIaEbiVetU-thQ 1a alfid t0-- provide mez'ms whereby d uring the femwaird' movement df -the lay said" shii'tt'le box; Will have less movement than the lay sis: time whefitheilay is at -its exfiferfie fm ward pdsi tiaii the shuttlehoy will be position" hehind theflay thus: iving clesmme:main ine the insertion and withdrawaiof the pile wires; end-the presem' invemieii relstes we pile fa'ibrie loom gof this typ'a I-ii making of "seme pile series the 100m is air'rlm ed tainsert a certasim number of picks of fi'liin'g thread I amid their at the nek t pick w insert a pilmwi'req tiiere being imthe fsbr iessit is famed: one or morepieks of filli g'ibetweeri each twe adjacent pile wires:

In the opeietiori of a leem of this type it is desirable thet the lay sheu'id the i fabiii'c u" tightly after the insertion ofe'melipickof lirigi but as the 'i1e*wire islarger than the filling and only rein'aifis im the fabric temporarily it is an advanta e t'o' have th'e laiy mikeferwaidsiirble a? less am Iiwde' urbe'efii-ng up' the'pile wire than in feetiiig u'p the-fillin One 'of the objects ofmy" iirzve'iitionis tb providea loom dperatiiig in this way sndI have herein provided a" mechanism fbr vilim ting the lay a-nd 'thsshuttie box ms the sideof the 10am on whicii'the wire motieir is 'lecateci so that affiei each filIing insei-ting: pick the lay-will have its maximum wm li tude of beatingg'up; movement; Whil affir" each'wire'iiiserting 'piek thelsy will have less amplitude o'f'beatirig itp movement} I11- this way the" Warpf thtead's? are maintained under uniform ten'siori mid a. supe'riofi fabric is pyodu'ced.

In orderto give an understandingof the invention Iliave ilihsti'ated in the'd'i'awitlgs a selected embodiment thereef: 1 which willnewbe describedafter Which-the novel fen tures will be pointed' out in the appended claims;

Fig. 1 is a fragmentary sectional View shewmg in'fronis VIBWOI'l-E end-*of a lay and the shuttle bOX at saidench' this being: the end of the lay on which-the wire motion' is supported I Fi 25s zv-side'v'iew sh owing'the lay and: shutt e box in their" rimmed pesition Fig 3 is'wsimilar view shbwilfg the fbr- WHJd position" of the lay and shuttle bo'x after 693011 filling-inserting pick;

' In thedrawings 1 iridi-eete's a pension-of a loom frame, 2- is the lay having 'the usual reed 3 thereon and 4 is-theshtrttlebax? at theside of the lay on which the wiremotion isnlecatedi The 1&yiSStlpp0PtGd by'th8 usual lay swords 4O WhlCh are cai'ried on the rock} shaft 5. The shuttle box etc-is mefinted on" a swinging: support 6 which A in tiirn is pivotally mounted the reek shaif-t 5 said shuttle boxbeingfith'us': supperted independently of the My sex that it has al movement relative thereto."

The= la2y i's-herein shown ashaving at its end a guide-51mm in whieii pir'is' 1t!jec'l3ing from the shuhtle'bex 8 are reeeive this pin and slot censtr ietion serving 150 guide the lay and shuttle bozo dufing their relatiye movement. The lary is ai'lso shewfi-as hewing astop projection eextemdiii datemlly there: from which is illustrated as carrying w stop" serew 10- with which i the: pertioii ll of the" shuttle bex co operates to limit the fbrw'errd {movement of'th-e shim-1e bax reiativewthe ayi Tha parts thus far described are or may be all as" usual pile Wire lo'ems of this type and ferns-n0 part of my present hi ventionwhich rel ates to the manner of operatingthe layand shuttle" 11026 and c011 troilingthe relative movements thereof;

The 'lsy is iven its vibrafln movement by a; cam deviee similar; to that filustrmfied' in myeopeiidin 'epplicetimi sesial No; 614,907, filed Jan; 25', 1923. Ti'iis cam device is in the form ofa'cam 12m0tirited-0n a'csnisha-ftdB; said cam co operatingjvith a tell l fiwhich is carried by anarm' 15 extending rearwfirdly' from the lay sword. The cam 12 is'illustrated as a three-point cam, it having the three high points 16,17"and ISfandtheintermedi atelow' points 19. As'the cam shaft rotates the engagement of each of the high points 16, 17 and 18 with the roll 14 will swing the lay forward thus giving it its forward beat and as the roll passes from the high point to the low point on the cam during the rotation of the latter the lay is returned to its backward osition by means of a spring 20. The shuttlb box 4 is given its vibrating movement by a similar mechanism comprising a cam member 21 also mounted on the shaft 13 and having the three high points 22 and the intermediate low points 23. This cam member co-operates with a roll 24 carried on an arm 25 extending rearwardly from the support 6.

27 indicates a spring attached to the frame 6 and which tends to draw the latter rearwardly and holds the roll 24 in operative engagement with the cam 21. As each hi h portion 22 of the cam 21 asses under t e roll 24 the shuttle box Wlll be moved forwardl as indicated in Fig. 3 while when the ow portion 23 of the cam 21 comes under the roll 24 the shuttle box will be moved backwardly into the position shown in Fig. 2 by means of the spring 27.

The cam 21 is symmetrical, that is, each of the hi h points 22 has the same radial distance rom the center and, therefore, the shuttle box 4 will be given a uniform beating-up movement.

With relation to the cam 12, however, the high points 16 and 17 have a reater radial distance from the center than file high point 18 and, therefore, as the cam 12 rotates the lay will be given a beating-up movement of greater amplitude by the high points 16 and 17 than by the high point 18.

A cam of this shape is especially designed for use in a pile fabric loom which operates to introduce two picks of filling between each two adjacent'pile wires and the loom will be adjusted so that after each fillinginserting pick the lay will be given its forward beat by one of the high portions 16 or 17 of the cam while after each wireinserting pick the lay will be given its forward movement by the point 18 of the cam which is constructed to give the lay a less amplitude of movement than the points 16 and 17. The relation between the cams 21 and 12 is such that the high points 22 of the cam 21 have a less radial dimension than the high points 16 and 17 of the cam 12 while the radial dimension of the hi h be kept clear of the pile wire motion al-' though the lay will have its full amplitude of movement and will thus beat the filling picks up tightly. After the pile wire has been inserted, however, the forward movement of the lay will be of less amplitude due to the shape of the high oint 18 of the cam and, therefore, the wire will not be beaten up so tightly.

I have, therefore, provided means whereby the lay will have a less amplitude of beating-up movement after each pile wire has been inserted than it has after each pick of filling is inserted.

I claim:

1. In a pile-fabric loom constructed to introduce (pile wires in the shed at certain picks an filling in the shed at other picks, the combination with a lay, of a shuttle box supported independently of the lay, and lay-vibrating means 0 crating to give the lay a greater amplitucib of beatin -up movement after the insertion of each fi ing pick than after the insertion of each pile wire.

2. In a ile-fabric loom constructed to introduce pile wires in the shed at certain picks and filling in the shed at other picks, the combination with a lay, of a shuttle box supported independently of the lay, and layvi rating means operatin to give the lay a greater amplitu e of heating-u movement after the insertion of each filling pick than after the insertion of each pile wire, the shuttle box-vibrating means operating to give the shuttle box a uniform amplitude of movement.

3. In a pile-fabric loom constructed to introduce pile wires in the shed at certain picks and filling in the shed at other picks, the combination with a lay, of a shuttle box supported independently of the lay, and lay-vibrating means operating to give the lay a greater amplitude of beatin -up movement after the insertion of each lling pick than after the insertion of each pile wire, the shuttle box-vibrating means operating to give the shuttle box a uniform amplitude of movement which, however, is less than {he greater amplitude of movement of the 4. In a pile-fabric loom constructed to introduce ile wires in the shed at certain picks and lling in the shed at other picks, the combination with a lay and its lay sword, of a shuttle box, a swinging support separate from the lay sword for supporting the shuttle box, arms extending rearwardly from the lay sword and frame respectively and two cams co-o crating with said arms for vibrating the ay and shuttle box, the lay-vibrating cam being constructed to give the la a greater am litude of vibration than t e shuttle box vi rating cam.

5. In a pile-fabric loom constructed to introduce plile wires in the shed at certain picks and Hing in the shed at other picks, the combination with a lay and its lay sword, of a shuttle box, a swinging support separate from the lay sword for supporting the shuttle box, arms extending rearwardly from the lay sword and frame respectively and two cams cooperating with said arms 5 for vibrating the lay and shuttle box, the lay-vibrating cam being constructed to give the lay a greater amplitude of vibration than the shuttle box after each filling-inserting pick and the same amplitude of move ment after each Wire-inserting pick.

In testimony whereof, I have signed my name to this specification.

JOSEPH F. BENOIT. 

